[galaxy-dev] Metadata access using tool config

Hi everyone, I am working on a tool which attempts to create a file which stores all the metadata associated with a job execution. The things I know how to access right now are the file extension, name history id, dataset id. I'd like to know how to access other things like the job id, uuid, file size, job command-line, job end time, job start time, core allocated, job runtime and any other important information associated with tool execution. I would prefer to get this information from the tool config file or my tool script and not have the user create an api key which they have to submit as a parameter to my tool. Let me know if you guys have any ideas! Katherine